Facebook founder Mark Zuckerberg says his company will share 3,000 Russia-linked political adverts with US investigators.
He also pledged to make political advertising more transparent on his network in future.
"We will work with others to create a new standard for transparency for online political ads," he said in a live address on his Facebook profile.
He said political advertising will now carry disclaimers about which campaign or organisation paid for it.
He added that the company was continuing to investigate instances of foreign actors abusing its advertising platform, including Russia and other "former Soviet states".
The move to share details with investigators comes after considerable public pressure for Facebook to be more transparent - and is being interpreted by some as an attempt to fend off any potential regulation from the US government.
Apple also doesn't support modern surround sound standards like Dolby Atmos and DTS:X, which place sound effects in 3D space around you," said The Verge's Nilay Patel in his APPLE 4K TV review. "Apple told me that the lack of Atmos isn't a hardware limitation, and that support is on the roadmap," he added.
It is not clear as to when Apple plans to bring this support to its 4K TV streaming box. Apple TV 4K starts at $179 for 32GB variant and $199 for the 64GB variant in the US